Delivery Time:45days after deposit
Certification:ISO9001：2008

50000m3 to 150000m3 AAC Block Production Line / Sand Lime / Fly Ash Block Plant
 
 
What is AAC (Autoclaved Aerated Concrete) ?
1. AAC block (autoclaved aerated concrete block), also called Light Block. AAC was perfected in the mid-1920s by the Swedish architect and inventor Dr. Johan Axel Eriksson, working with Professor Henrik Kreuger at the Royal Institute of Technology. It went into production in Sweden in 1929 in a factory in Hallabrottet and quickly became very popular. In the 1940s, the trademark Ytong was introduced, and was often referred to as \"blue concrete\" in Sweden due to its blueish tinge.It used siliceous (fly ash, sand, slag) and calcareous (lime & cement) as the main raw materials, which through the process of batching, pouring, pre-curing, cutting, autoclaving, separating and packing to make into the final products.
2. AAC block is new type & environmental construction material and widely used for industry and civil building construction. It has light ,keeping temperature , Environmental protection,can’t burn and other advantages. It has a wide prospect of market.it is the main building material in the future.
3. AAC block can be made into many kinds of bricks(for example:600×200×100,80×80×180,240×115×53,600×200×125),they could be used industry building and common building. AAC Block is the most mature technology of production and application in the worldwide nowadays.
4.As normally, concrete density is usually 1600-2400kg/m3,but aerated concrete are 500kg/m3,600kg/m3,700kg/m3.It has not the big grain and use silicon material (for example: fly ash,sand,stone dust and others ),through making the material small for example sand, they can be used directly if has enough degree of small (for example fly ash, Mixing calcium material lime, cement, water to a special ratio, then add the aluminum dust and the additive, then Make the aluminum dust and the special ratio have a Chemical reflect. then produce Hydrogen to make the concrete slop to expanding or swell and foam. Next put them into the curing room to concreting cutting steaming curing, At last, there will become the light brick and the porous rate is 70-80%.

How AAC (Autoclaved Aerated Concrete) production line working ?

First of all, dosing of the stored raw materials Feed raw materials into the pouring mixer and evenly mixing Poured the slurry into the mould Static stop and pre-curing under a certain temperature, the slurry become a big block The big block had a certain of hardness, then be hanged for 90 degree by turning hoister Open the mould and de-moulding ,The big block will sit on the one side plate and also 8 :Horizontal cutting the big block

     9. Vertical cutting the big block
    10. Hanging semi-product to hardening car
    11. Entering autoclave                   
    12. hardening
    13. leaving autoclave
    14. Hanging and stacking of end products
    15. loading and packing
 
About the raw material ratio of AAC block :
 
Cement lime fly ash style aerated block raw material proportion
 

name	unit	Cement lime fly ash
Fly ash	%	65-70
cement	%	6-15
lime	%	18-25
gypsum	%	3-5
Aluminum powder paste(600kg/m3)	KGS	0.6
Water & material rate		0.60-0.65
Casting system	OC	36-40
Aluminum mixing time	S	30-40

 
Cement lime Sand style aerated block raw material proportion
 

Name	Unit	Cement Lime Sand
Sand	%	55-65
Cement	%	10-20
Lime	%	20-30
Gypsum	%	2-3
Aluminum powder paste(600kg/m3)	KGS	0.8